People do all kinds of funny things in their heads--math problems, hot mechanic fantasies, hearing strange voices--but what we love most of all is when they rationalize their burning desire to get buck naked in the service of art. Spencer Tunick is a master at encouraging grandmothers and other typically unassailable types to show off the goods, and now he's taken his gift for blarney to the source: Ireland's Blarney Castle. No sign of Bono yet, which is probably a good thing. (news.bbc.co.uk)